Avalue Technology EPC-EHL, Quick Reference Manual, Page: 51 / 79

Quick Reference Guide
EPC-EHL Quick Reference Guide 51
Intel® Speed Shift
Technology
Enabled [Default] ,
Disabled
Eanble/Disable Intel® Speed Shift
Technology support. Enabling will
expose the CPPC v2 interface to
allow for hardware controlled
P-states.
Turbo Mode
Enabled [Default] ,
Disabled
Enable/Disable processor Turbo
Mode (requires Intel Speed Step or
Intel Speed Shift to be available
and enabled).
C States
Enabled [Default] ,
Disabled
Enable/Disable CPU Power
Management. Allows CPU to go to
C states when it’s not 100%
utilized.
3.6.2.2.1.1 View/Configure Turbo Options
Item Option Description
Energy Efficient P-state
Disabled
Enabled [Default]
Enable/Disable Energy Efficient P-state feature.
When set to 0, will disable access to
ENERGY_PERFORMANCE_BIAS MSR and
CPUID Function 6 ECX[3] will read 0 indicating no
support for Energy Efficient policy setting. When set
to 1 will enable access to
ENERGY_PERFORMANCE_BIAS MSR 1B0h.
Energy Efficient Turbo
Disabled
Enabled [Default]
Enable/Disable Energy Efficient Turbo Feature.
This feature will opportunistically lower the turbo
frequency to increase efficiency. Recommended
only to disable in overclocking situations where
turbo frequency must remain constant. Otherwise,
leave enabled.